| 摘要 |
A method for reinforcing a foundation of a concrete dam is provided to prevent subsidence of a ground, and to increase assembling force of concrete and the ground by installing a support in the ground. A bore is formed in an excavated ground for pouring concrete for a dam, and a fixing pipe with a grouting injection pipe is inserted to the bore of the ground(S10). Mortar is injected to the grouting injection pipe after moving up the grouting injection pipe from the fixing pipe and widening a lower part of the fixing pipe, and the fixing pipe is fastened to the ground(S20). An operating lever is combined with the upper part of the grouting injection pipe, and a steel reinforcing bar is fastened to a support pipe after fastening the support pipe to the operating lever(S30). A form for pouring concrete is installed in the ground, and a retaining wall is formed by pouring and curing concrete in the form and laying earth in the back of concrete(S40). A taper is inclined and formed in a lower part of the grouting injection pipe, and a slot is formed in the lower part of the fixing pipe and opened outward by the taper. A groove is formed in the support pipe to insert the steel reinforcing bar. |
